Samsung Galaxy S4 Secret Short Codes

Samsung Galaxy S4 Secret Short Codes

Just open up your keypad and dial these secret codes and enjoy a kind of smart phone customizations that never existed.

What the hell these secret codes do?

With these codes you can have a plethora of options to test various hardware aspects of your phone. They open a hidden menu in it and you gain access to functionalities that cannot be found in default Galaxy S4 settings menu otherwise.
They empower you to locate the hardware components which has problems and you can diagnose whether they are working properly or not. Those codes apply to such hardware components as Speaker, Sensor, LCD, Touch Screen, Color, Camera, Speaker, Vibration and all sensors including Accelerometer, Proximity and Magnetic sensor, Sub key etc.

1. It takes some time to reset. So better fully charge your battery before going down this path. Symbian resets also had such a pre requirement.

2. All user generated data including contacts, messages will be irrecoverably erased. Copy all your necessary data, Contacts and Messages to SIM, backup to your PC or keep an online backup before a full reset.

3. Take out SIM and SD card.

4. Dont factory reset with SD card encryption setting enabled. The device will not be able to read your encrypted files. Disable this setting before resetting the device.

The Processes

1. Force Reset.

Press and hold POWER button for 8-10 seconds. The device reboots on its own. If this does not melt the rigidities such as lags or stuck systems, you can do a factory reset.

2. Factory Format or Hard Reset

Enter *2767*3855#. It will do the Full factory reset. It does not ask you to confirm unless you have a problem.

3. Factory Data Reset

The code is *#7780#. It wont wait for your confirmation either.

4. Hard Reset

Steps

1. Press and hold "Volume Up" key and Home button.

2. Press Power until the phone vibrate.

3. When the Android logo appears, release all buttons.

4. Choose Wipe data Factory reset with Volume Down.

5. Press Power.

6. Select "Yes" delete all user data with VOLUME DOWN and then press Power

After format, press Power again to reboot phone. (select reboot system now)